Fiber-reinforced recycled aggregate concrete with crumb rubber: A state-of-the-art review

Shahjalal, Md.; Islam, Kamrul; Batool, Farnaz; Tiznobaik, Mohammad; Zahid Hossain, F.M.; Sakil Ahmed, Khondaker; Alam, M. Shahria; Ahsan, Raquib

doi:10.1016/j.conbuildmat.2023.133233

Cited by 20 publications

(7 citation statements)

References 156 publications

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“…The global annual production of waste tyres exceeds 200 million tons, with China generating approximately 120 million tons of waste tyres per year [15][16][17]. Currently, China's annual waste tyre recycling capacity is around 6.4 million tons, with a recycling rate of only 5%.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High-Performance Alkali-Activated Concrete: Effect of Waste Crumb Rubber Aggregate Proportions on Tensile and Flexural Properties

Li,

Chen,

Che

et al. 2024

Buildings

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The declining availability of natural sand resources and the significant carbon footprint associated with the extensive use of cement are posing severe limitations on the advancement and application of ultra-high-performance concrete (UHPC). In this study, waste tyre-derived recycled crumb rubber particles (CR) were employed to replace quartz sand, and an alkali-activated cementitious material was used to produce waste tyre-alkali-activated UHPC (T-UHPAC). The influence of different CR replacement ratios (0%, 5%, 20%, 35%, 50%) on the tensile and flexural performance of T-UHPAC was investigated, and a predictive model for the stress–strain response considering the CR replacement ratio was established. An optimization method for improving the tensile and flexural performance of T-UHPAC was proposed. The results indicate that the effect of rough-surfaced CR on the interfacial properties of concrete differs from that of smooth quartz sand. A CR replacement ratio exceeding 35% led to a reduction in both the tensile and flexural strengths of UHPAC, while a replacement ratio at or below 20% resulted in a superior tensile and flexural performance of T-UHPAC. The established predictive model for tensile performance accurately forecasts the stress–strain behaviour of T-UHPAC under varying CR replacement ratios, with the accuracy improving as the CR replacement ratio increases. By utilizing CR to replace quartz sand in proportions not exceeding 20%, the production of low-carbon UHPC with exceptional comprehensive mechanical properties is achievable. Moreover, the development of T-UHPAC through the comprehensive utilization of waste tyres presents a promising and innovative approach for the low-carbon and cost-effective production of UHPC, thereby facilitating the sustainable development of natural resources. This research represents a significant step towards the widespread adoption and application of UHPC and thus holds substantial importance.

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Section: Introductionmentioning

confidence: 99%

Ultra-High-Performance Alkali-Activated Concrete: Effect of Waste Crumb Rubber Aggregate Proportions on Tensile and Flexural Properties

Li,

Chen,

Che

et al. 2024

Buildings

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“…They comprehensively elaborated RAC’s strength, stress–strain curves, elastic modulus, Poisson’s ratio, bond strength, and fracture energy, as well as its dry shrinkage, freeze–thaw, carbonation, sulfate, chloride penetration, air permeability, and fire resistance. Shahjalal et al [ 28 ] presented a holistic review of the durability of RAC, examining impermeability, chloride penetration resistance, carbonation resistance, frost resistance, and alkali–silica reactions. Malazdrewicz et al [ 29 ] provided an overview of existing studies on the durability of self-compacting RAC, examining chloride permeability, carbonation behavior, and freeze–thaw resistance.…”

Section: Introductionmentioning

confidence: 99%

A Review of Chloride Penetration of Recycled Concrete with Enhancement Treatment and Service Life Prediction

Wang,

Liao,

Zhang

2024

Materials

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The application of recycled coarse aggregate (RA) in structural concrete can save non-renewable resources and reduce land occupation. Developing comprehensive knowledge of chloride penetration and service life modeling of recycled coarse aggregate concrete (RAC) is a prerequisite for practice. However, compared with the natural aggregate concrete (NAC), the inferior durability performance, especially chloride penetration resistance, of RAC hinders its application in structural concrete. Therefore, many RAC performance enhancement methods have been proposed. This paper presents a holistic review focused on the chloride penetration of RAC with/without enhancement methods and service life prediction. The current RAC performance enhancement methods are introduced. The improvement effect of the corresponding enhancement methods on the chloride penetration resistance of RAC are discussed and analyzed in turn. Based on the reviewed data on the chloride diffusion coefficient, the modification efficiencies of assorted enhancement methods are summarized. With the hope of promoting RAC application in structural concrete, the current literature on chloride-ingress-based service life prediction for RAC is also overviewed. In addition, the typical influencing factors on chloride transport properties are also discussed, i.e., RA quality. It can be concluded that enhancement techniques can effectively improve the chloride penetration resistance of RAC. The old mortar enhancement or removal methods can improve the chloride penetration resistance by 15–30%, depending on the specific treatment measures. The modification efficiency of the modifier material depends on the specific type and content of the incorporated substance, which ranges from approximately 5% to 95%. The estimated service life of RAC structures decreases with the increasing RA replacement ratio. Finally, concluding remarks are provided concerning future research on the chloride transport behavior of RAC.

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“…Shahjalal et al reviewed fiber addition to improve the properties of concrete with recycled aggregate and crumb rubber. Fibers compensated for strength reductions from rubber and improved mechanical performance 26 . Thakare et al added waste tire fibers and bacteria to self-compacting mortar, finding that using fibers as bacteria carriers enhanced strength and self-healing versus direct bacteria addition 27 .…”

Section: Introductionmentioning

confidence: 99%

Enhancing high-performance concrete sustainability: integration of waste tire rubber for innovation

Singaravel,

Veerapandian,

Rajendran

et al. 2024

Sci Rep

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This study extensively explored the impact of integrating waste tire rubber into high-performance concrete (HPC) by substituting natural sand. Different fractions of rubber particles—5%, 10%, and 15% replacements of the fine aggregate—were rigorously investigated. Properties from fresh to hardened concrete were assessed, including compressive and tensile strength, modulus of elasticity, workability, and damping coefficient. Replacing up to 10% of sand with 0.6 mm rubber particles showed minimal strength compromise compared to standard HPC. However, at a 15% replacement rate, a noticeable decline in strength became evident, highlighting an optimal threshold for inclusion. Additionally, rubber incorporation notably enhanced concrete ductility and damping, marking a substantial improvement in dynamic properties. Efforts to offset strength reduction through increased fines content and mineral admixture could not counteract the decline at the 15% replacement level, suggesting limitations in compensatory measures. Methodological refinements enhanced data accuracy, including capping and surface treatments during compression testing. The study underlined the viability of controlled rubber substitution for bolstering HPC's dynamic attributes. Despite strength reductions at higher replacement rates, controlled waste tire rubber integration proves promising for enhancing HPC's dynamics without compromising structural integrity, advocating its suitability across diverse construction applications.

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Fiber-reinforced recycled aggregate concrete with crumb rubber: A state-of-the-art review

Cited by 20 publications

References 156 publications

Ultra-High-Performance Alkali-Activated Concrete: Effect of Waste Crumb Rubber Aggregate Proportions on Tensile and Flexural Properties

Ultra-High-Performance Alkali-Activated Concrete: Effect of Waste Crumb Rubber Aggregate Proportions on Tensile and Flexural Properties

A Review of Chloride Penetration of Recycled Concrete with Enhancement Treatment and Service Life Prediction

Enhancing high-performance concrete sustainability: integration of waste tire rubber for innovation

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